Basic operation 273 Basic operationThis section describes the basic operation of yourradio.This section covers:■ Turning the radio on and off■ Adjusting the speaker volume■ Activating the external speaker■ About locking the radio■ Locking and unlocking the keypad■ Navigating the radio’s menus■ Using function keys to access frequently usedfeatures■ Selecting a zone■ Selecting a channel■ Limiting call time■ Checking recent callsTurning the radio on and off■ Long press the on/off key to turn the radio eitheron or off.volume control on/offStandard control head Hand-held control head

Tait TM9456 User Manual